Re: Using a different Matplotlib backend on a per-script basis
Dear Jonathan,
this worked well, even with the PDF backend. Maybe that short piece of
information could be added to the corresponding FAQ.
Thank you for the swift help.
Best regards,
Christoph
Am 13.03.2019 um 17:28 schrieb Guyer, Jonathan E. Dr. (Fed) via fipy:
I think option 3 is what you want. Before import fipy or anything else, start
your script with
```
import matplotlib
matplotlib.use('backend')
```
On Mar 13, 2019, at 9:43 AM, Christoph Margenfeld
wrote:
Hello,
as mentioned in the FiPy FAQ, a different Matplotlib backend has to be
used when exporting images from the MatplotlibViewer class without any
output to the screen.
From the Matplotlib documentation (at
https://gcc01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fmatplotlib.org%2Ftutorials%2Fintroductory%2Fusage.html%23what-is-a-backend&data=02%7C01%7Cjonathan.guyer%40nist.gov%7Cfcdca20d85b343ceac4b08d6a7ba19f0%7C2ab5d82fd8fa4797a93e054655c61dec%7C1%7C0%7C636880815078320111&sdata=%2B0YF4KH4MUJJcHVjxm5RXUpE%2BYUdSoLLcWEn6HAlmsE%3D&reserved=0),
there are three ways to select a backend. The first two would involve
setting it in a .matplotlibrc file or as an environment variable.
However, that would affect all scripts run in that particular
environment, which I do not want to do. The third approach is setting
matplotlib.use('backend').
How can I select a Matplotlib backend for a certain MatplotlibViewer
without affecting any other scripts run from my environment?
Thank you!
Best regards,
Christoph Margenfeld
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--
Christoph Margenfeld, M.Sc.
Institut für Halbleitertechnik
TU Braunschweig
Hans-Sommer-Straße 66
38106 Braunschweig
Tel. +49 531 391 3786
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Re: Using a different Matplotlib backend on a per-script basis
Hi Christoph,
Have you tried setting the backend at the start of your FiPy script like
this?:
importmatplotlib
matplotlib.use('AGG')
This won't make the changes system wide, only for the script. I think
this will work since FiPy doesn't appear to deviate from the default
rcparams setting for the backend.
(https://github.com/usnistgov/fipy/tree/develop/fipy/viewers/matplotlibViewer)
Best,
-Mike
On 3/13/19 9:43 AM, Christoph Margenfeld wrote:
Hello,
as mentioned in the FiPy FAQ, a different Matplotlib backend has to be
used when exporting images from the MatplotlibViewer class without any
output to the screen.
From the Matplotlib documentation (at
https://matplotlib.org/tutorials/introductory/usage.html#what-is-a-backend),
there are three ways to select a backend. The first two would involve
setting it in a .matplotlibrc file or as an environment variable.
However, that would affect all scripts run in that particular
environment, which I do not want to do. The third approach is setting
matplotlib.use('backend').
How can I select a Matplotlib backend for a certain MatplotlibViewer
without affecting any other scripts run from my environment?
Thank you!
Best regards,
Christoph Margenfeld
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Re: Using a different Matplotlib backend on a per-script basis
I think option 3 is what you want. Before import fipy or anything else, start
your script with
```
import matplotlib
matplotlib.use('backend')
```
> On Mar 13, 2019, at 9:43 AM, Christoph Margenfeld
> wrote:
>
> Hello,
>
> as mentioned in the FiPy FAQ, a different Matplotlib backend has to be
> used when exporting images from the MatplotlibViewer class without any
> output to the screen.
>
> From the Matplotlib documentation (at
> https://gcc01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fmatplotlib.org%2Ftutorials%2Fintroductory%2Fusage.html%23what-is-a-backend&data=02%7C01%7Cjonathan.guyer%40nist.gov%7Cfcdca20d85b343ceac4b08d6a7ba19f0%7C2ab5d82fd8fa4797a93e054655c61dec%7C1%7C0%7C636880815078320111&sdata=%2B0YF4KH4MUJJcHVjxm5RXUpE%2BYUdSoLLcWEn6HAlmsE%3D&reserved=0),
>
> there are three ways to select a backend. The first two would involve
> setting it in a .matplotlibrc file or as an environment variable.
> However, that would affect all scripts run in that particular
> environment, which I do not want to do. The third approach is setting
> matplotlib.use('backend').
>
> How can I select a Matplotlib backend for a certain MatplotlibViewer
> without affecting any other scripts run from my environment?
>
> Thank you!
>
> Best regards,
> Christoph Margenfeld
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> fipy mailing list
> fipy@nist.gov
> http://www.ctcms.nist.gov/fipy
> [ NIST internal ONLY: https://email.nist.gov/mailman/listinfo/fipy ]
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Using a different Matplotlib backend on a per-script basis
Hello,
as mentioned in the FiPy FAQ, a different Matplotlib backend has to be
used when exporting images from the MatplotlibViewer class without any
output to the screen.
From the Matplotlib documentation (at
https://matplotlib.org/tutorials/introductory/usage.html#what-is-a-backend),
there are three ways to select a backend. The first two would involve
setting it in a .matplotlibrc file or as an environment variable.
However, that would affect all scripts run in that particular
environment, which I do not want to do. The third approach is setting
matplotlib.use('backend').
How can I select a Matplotlib backend for a certain MatplotlibViewer
without affecting any other scripts run from my environment?
Thank you!
Best regards,
Christoph Margenfeld
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